Roller burnishing

About: Roller burnishing is a research topic. Over the lifetime, 395 publications have been published within this topic receiving 3322 citations.

Rolling slide member, manufacturing method therefor and rolling bearing

Abstract: PROBLEM TO BE SOLVED: To provide a rolling slide member that can elongate the lifetime and a manufacturing method therefor, besides it can make miniaturizing the crystal grain of a rolling slide section face and consequently improve the strength. SOLUTION: Beside a roller burnishing process is performed two or more times in the condition that the lubricant is supplied to the track section (rolling slide movement section) 1c of an inner ring (rolling slide movement member) 1 composed of a bearing steel, the traction power given to the track section 1c through an oil membrane D of the lubrication oil (lubricant) from the mirror face ball (jig) C performing the roller burnishing process at one time of process at least among two or more times of the roller burnishing process is increased more than that of the other processing time and the crystal particle size of the surface of the track section 1c is made to be more than the JIS particle size number 12. COPYRIGHT: (C)2004,JPO

Tool for roller burnishing a toroidal fillet

Abstract: The invention relates to an action tool (18) for roller-burnishing a toroidal fillet (16a) for connection between a cylindrical face (19) defining the bottom of an annular groove (14) in a rotating part (12) and a first lateral annular face (17a) at the edge of the groove (14), the tool comprising in a housing (30) a wheel (52) bearing on a roller (40) having a burnishing strength on the groove that includes a radial component and a component along the B-B axis of the wheel (52), characterised in that it comprises at least one abutment member (58) capable of bearing on a second lateral annular face (17b) of the groove (14) in order to compensate the reaction force of the axial component of the burnishing force applied by the roller (40) on the fillet.

Applicability of Surface Flow Process for Modification of Tribological Properties of Titanium

Abstract: The present study proposed a novel surface modification process based on surface plastic deformation, surface flow process, to improve tribological properties of pure titanium (Ti) surfaces. The developed process is consisted from a micro shot peening and a roller burnishing: The former and the latter processes is applied to fabricate to micro dimples and to penetrate molybdenum disulfide (MoS2) fine powders into the dimple. During the burnishing process, the surface was truncated and the penetrated MoS2 into the dimple was densified simultaneously. As results, the treated surface was relatively flat and was consisted from micro dimples filled with dense MoS2. Tribological properties of the treated surface were evaluated with a ring on disc type testing apparatus using a hardened steel ring as a mated specimen in lubricated condition. Results showed that the tribological properties of the treated surface is significantly improved including restriction of seizure

Method and device for roller burnishing of crank shaft

Abstract: PURPOSE:To establish a roller burnishing process for the shank part of a crank shaft, in which the shank ends are prevented from sagging. CONSTITUTION:The shoulder part 7b at each end of a burnishing roller 7 is contracted relative to a thicker column part 7a in the center, and thereby the form of a Japanese drum is generated. The column part 7a is made of a material having high Young's modulus while the shoulder part 7b made of a material of low Young's modulus. The shank part of a crank shaft W is supported by a support roller and rotated. The burnishing roller 7 is rotated, and from the back, a backup roller 8 is pressed so that the roller 7 is pressed to the shank part 1. Because the processing surface pressure of the roller 7 is high in the column part 7a of high Young's modulus and low in the shoulder part 7b, the shank part 1 is precluded from sagging. Because of this special form of roller 7, the shank part 1 can be finished in a recessed form, and it is easy for the shank part 1 to form an oil film and retain, to lead to enhancement of the seizure resistance of the shank part of crank shaft.

Burnishing method and roller burnishing tool

Abstract: PROBLEM TO BE SOLVED: To provide a burnishing method which can perform high-quality machining by utilizing a simple and inexpensive device for finishing a spherical surface-shaped workpiece, and a roller burnishing tool used for the burnishing method. SOLUTION: The roller burnishing tool 1 is equipped with a frame 11 which has a rotating shank 10 connected to a driving machine, and an opening part 11a which is connected to the tip end of the shank 10 and formed so as to insert at least a part of the workpiece, and integrally rotates with the shank 10, a roller 12 rotatably held by the frame 11, a head 13 which surrounds the frame 11 and the roller 12, and receives a machining reaction force in workpiece surface compaction by the roller 12, and a bearing 14 interposed between the frame 11 and the head 13. The finishing of the spherical surface shape workpiece is performed by utilizing the roller burnishing tool 1. COPYRIGHT: (C)2008,JPO&INPIT